People ex rel. Madigan v. Illinois Commerce Comm’n

(Court opinion corrrected 7/31/15.) Illinois Commerce Commission had power to interpret provisions of Energy Infrastructure Modernization Act relating to calculation of interest on reconciliation balance, which it exercised in accordance with principles of statutory construction. Commission did not err in determining that ComEd was entitled to calculate interest on full amount of under-collected revenues pursuant to annual reconciliation provisions of that Act. Nothing in record shows that calculation approved by Commission produces rates that are unjust and unreasonable. Benefit flowing from higher interest calculation inures to ComEd in some years and ratepayers in others. (PUCINSKI and LAVIN, concurring.)